... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... The interface between the lower solar atmosphere where energy is generated by subsurface convection and the corona comprises the chromosphere, which is dominated by jet-like, dynamic structures, called mottles when found in quiet regions, fibrils when found in active regions and spicules when observed at the solar limb. ... In addition, how they affect the coronal heating and solar wind need to be further explored. ...

AUTOMATIC STATION OF ECOLOGICAL CONTROL . ... BASIC PERFORMANCE SPECIFICATION . STATE OF ASEC DEVELOPMENT . AIR POLLUTION MONITORING . ... OF MEASURING CHANNELS . ... unit of measurement . ... Nitric oxide (NO) concentration, . ... power measured by ASEC . ... In particular, RSC Energia finalizes its work on measurement systems designed to measure dust, volumetric activity of radioactive gases and aerosols and other environmental parameters. ... Official WEB-site of S.P.Korolev RSC Energia . ...

... Bojan Nikolic web pages (r. 329) . ... From astromap version 1.5b3, the OOF software supports deconvolution of an observation of a planet to retrieve the assumed Gaussian parameters of the beam. This deconvolution can be useful for empirical monitoring of telescope beams over time over which the planets used as sources vary significantly in size. ... Bojan Nikolic <b.nikolic@mrao.cam.ac.uk> # Initial version 2005. ... Copyright 2005 -- 2016, Bojan Nikolic feedback welcome ...

OBSERVATIONS OF COORBITAL SATELLITES OF SATURN Emel'yanov N., Varfolomeev M. Sternberg State Astronomical Institute, Moscow, e-mail : emelia@sai.msu.ru Institut de MИcanique CИleste et de Calcul des иphИmИrides, Paris, e-mail : emelia@imcce.fr Abstract. To improve the orbital parameters and masses of coorbital satellites of Saturn, Janus and Epimetheus, new observations of these satellites are necessary. ... IN: Saturn. ... New observations of Saturn's coorbital satellites" - Icarus. ...

... Fitting the observed dependence includes calculations of the polarization cross-sections averaged over particles orientation and size distribution, their normalization and the comparison of obtained dependencies with Serkowski's curve representing observational data for a chosen star. ... Variations of the polarization factors with wavelength are shown in Fig. 16 for homogeneous spheroidal particles with PF orientation. ... The distinction between prolate and oblate spheroids is also clearly seen. ...

. ___________________________________________________________________ The Electronic Universe Project e-mail: nuts@moo.uoregon.edu

... Our scientific interest is an accuracy of asteroid CCD observations obtained by amateurs and professional astronomers all over in the World. ... These data help us to analyse an accuracy of real CCD positions in the MPC Database. ... Do you test your observations of the small Solar System bodies permanently before sending them to the International Minor Planets' Center? ... Do you know a real accuracy of your positional CCD-observations in comparison with the other observatories' one ? ...

... Several of the tasks in the spectral package share a common set of parameters. ... Each task in the spectral package has a hidden parameter which points to the pkgpars parameter file. The parameters stored here include the observed data sets and the model descriptor, and instrument-specific parameters. ... The observed counts and error data set contained in the table file ( *_obs.tab ) produced by qpspec will be the input data for subsequent spectral tasks. ...

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... Investigations of the ionospheric response to strong magnetics storms which are usual for our latitudes, are of great interest. ... In the figure, we present ionospheric parameter dynamics during three perturbed days in July 2000. ...

Next: NICMOS/HST H-band (F160W) Images Up: NICMOS Science Previous: HST NICMOS Observations of . ... Observations of P . ... The NICMOS team has devised a comprehensive program of observations of the Galactic Center. ... Data in hand give a first look at variability and a detailed look at the search for the tip of the main sequence will be discussed where NICMOS has demonstrated adequate sensitivity and photometric precision to identify likely O8-B1 stars at the Galactic Center. ...

... So, I requested the dark time in the following two weeks. ... November 17-23 dark 2. December 15-21 dark INSTRUMENT: FlareCam FILTERS: SDSS ugriz COMMENTS: BRIEF SCIENCE JUSTIFICATION: Besides the dwarf novae with short orbital period CVs, Nova-like variables including SW Sex-type CVs with high accretion rates and Intermediate polars with long orbital periods are also critical to unravel CV formation and evolution. ... We expect to do high time resolution photometry for the bright targets. ...

NMW survey overview . Access image archive . ... The New Milky Way survey aims to detect bright (V<13.5) optical transients near the Galactic plane using an automated wide-field (8x6 deg.) system capable of surveying the whole Milky Way area visible from the observing site in one night. ... All images obtained during the transient search survey are available online (please use the image archive access form ). ... Images per field: . ... Images per night: . ... Milky Way imaging time: . ...

... Based on the measurements of the Stokes parameters in the continuum and in the broad 0.6563 nm hydrogen emission line obtained with the 6-m telescope for the Seyfert galaxy Mkn 6, secular variability of the hydrogen line profile polarization was discovered; a time lag of less than 2 days between the continuum flux and the polarized continuum emission was determined which corresponds to the size of the region where the polarization of the continuum occurs, less than 0.001 pc. ...

GRANAT is the Russian x-ray sattelite launched to the high apogee orbit (200,000 km) and operated almost for 10 years (1989 -1999) , carrying out four major instruments: French SIGMA coded-mask hard x-ray telescope (30-1000 keV), Soviet ART-P coded-mask telescope (2??-60?? keV), all-sky monitor WATCH (6-150 keV), and a gamma-burst detector PHEBUS . ... Since September 1994, GRANAT is in the survey mode. ... Explore pages devoted to individual GRANAT instruments (including main scientific results): . ...

Peremennye Zvezdy ( Variable Stars ) 26 , No. ... The light and colour curves are typical for this class of objects, the absolute magnitude at maximum and decline rate are in agreement with the relationship between these parameters established for SNe Ia. SN 2004fu was discovered by Arbour (2004) on unfiltered CCD images taken with a 0.3-m Schmidt-Cassegrain reflector on 2004 November 4.87 (approximately at 16 8) and 5.81 (approximately at 16 5). ... 2004). ... 0.03 . ... C60 . ...

... the time of observation . ... Observing the Changing Position of the Sun To Establish Cardinal Directions . ... Observations of the Sun's apparent movement across the sky and its pattern of rising and setting in the east and west horizon helped to establish the cardinal directions. ... The final stage of the Sun's return was marked by the observation that the Sun had reached its highest altitude when the full width of your mitted hand could fill the gap between the Sun and the horizon. ...

... Recent Topics . ... MAO main . ... Fw: ASTRONET: Task 5.4 - observing schools . ... Subject: Re: ASTRONET: Task 5.4 - observing schools . ... with the organization and carrying out observing schools. ... second half of September, and which will be funded by the training and . ... intended for master and starting PhD students. ... actions on observing schools, providing access for students, Master . ... observing schools for master students. ... in form of observing schools for pre-PhD students. ...

RADIOASTROPHYSICAL DEPARTMENT • INSTITUTE OF SOLAR-TERRESTRIAL PHYSICS RAS SB . General information Main characteristics of the Radio telescope Observing programs General view of the antenna array Main research areas Principle of generation of radio images Radio telescope 's beam Receiving systems Main characteristics of the base receiving-recording complex Calibrations Data archive and databases Publication SSRT - Siberian Solar Radio Telescope . ...

ATMoB "Open Cluster Observing Award " Guidelines Purpose: To promote observing among the membership of the Amateur Telescope Makers of Boston through participation in the Open Clusters Observing Awards program. Introduction: This awards program is oriented towards visually observing open clusters above magnitude 9.9. ... It turns out that a very unprejudiced and convenient method to dermine the limiting magnitude is to count the number of visible stars in certain areas on the sky. ...

Observational Stellar Astronomy . Articles | ... We are made of star stuff" . ... TEMPERATURE OF A STAR: . ... The temperature of a star can be found out easily by simple observations. ... STAR . ... SPECTRAL CLASS: . All the stars in this universe are divided in to spectral classes based on their spectral lines. ... The spectral class of a star and the temperature of a star are related. So the spectral class can be found for a star since we know its temperature. ... www.astronomy.net . ...